iOS 7 is Apple's "New Coke."
They stripped everything that made the iOS stand out and distinguished it from the competition--the photorealistic textures, buttons and switches that actually looked like buttons and switches and were thus intuitive, icons that, well, made sense--and replaced them with icons that are in many cases ambiguous at best (a gas hob for settings? Really?), a 'flatness' that is unintuitive (is this a button or just a word?), toggles that are camoflaged and nearly impossible to see (can we pick a poorer color combination than dark white on light white?), banner color combinations that are illegible (white text on astro-bright green?)--the color combinations that seem designed specifically to reduce legibility in general all while increasing eyestrain--that white background MUST have a dark alternative.
They took a phone OS that was a joy to use and, literally in the case of my tired eyes, made it a pain.
Children seem to like it, though.
If the shortcomings introduced by iOS 7 interface are not addressed and addressed quickly, I will be selling my iPhone despite my app investment and returning to Android, or maybe Microsoft. My iPhone no longer looks like an Apple product anyways, it looks like a poor copy of a Samsung skin with some Microsoft features thrown in to boot--when did Apple stop being a leader and innovator and start being a follower?